The Kootenay populations, a fixture on the landscape for thousands of years, succumbed to industrial disturbances and other human activity in their critical habitat.
Many of the dead seals that washed ashore in northern New England in the past few weeks tested positive for either avian influenza or phocine distemper virus, but it is still too soon to say if those viruses are the primary causes of the unusual die-off.
Ecologist fears the Macleay River may take decades to recover, with heavy rains likely to affect other waterways
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